Setting-key for fuses.



K. VO'LLBR.

SETTING KEY FOR FUSES.

APPLICATION FILED 00T.14, 1913 1,104,585, Patented July 21, 1914.

Fig.7.

WITNESSES INVENTEIR &

@fIE- PATENT @FFTCE.

XVAAREN- UNI) IvZASCHINElFFABRIK, CORPORATION OF GERIi/IANY.

OF DUSSELDORF-DEHENDORF, GER'MANY, A

SETTING-KEY FOR FUSES.

T all whom it may concern Be it known that I, KARL VoLLER, a subject ofthe German Emperor, residing at 1'2 Scharnhorststrasse, Dusseldorf,Germany, have invented certain new and useful Improvements inSetting-Keys for Fuses; and I do hereby declare the following to be afull, clear, and exact descri tion of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The invention relates to a setting key for fuses with a correctiondevice, which enables the fuses of a number of projectiles to be set todifferent lengths in the shortest possible time.

This is effected according to the invention by attaching the memberwhich sets the correction to the hand grip, so that the adjustment canbe effected with the hand which holds the setting key. The member foreffecting the correction is displaced during the setting through a.certain distance and is then held in this position by a locking device.After a certain number of projectiles has been set by the displacementof this member, the locking device is re leased by a spring and themember re turned to its original position.

A setting key with a correction device according to the invention isrepresented in the accompanying drawing in which Figure 1 is a sectionthrough line 1- l of Fig. 2. Fig. 2 is a plan view. Figs. 3 and 4 aresections respectively through lines 33 and 44: of Fig. 2.

The setting key has the same construction as that shown in the UnitedStates Patent No. 1037811.

a is the hand grip to which the ring b is secured. The ring I) issurrounded by a second ring a having a flange (1 with which ring I) isin contact. A flange c screwed in the ring 0 retains the two rings and ctogether and allows them to be relatively rotated, but not verticallydisplaced. Qn the ring 0, which carries a fixed stud for setting thefuse, there is a graduated ring f and the ring; 7; has a ma which can beset to the length required for the fuse.

1n the ring 6 there is a slide 1 which can be adjusted and fixed inposition and carries a second projectiOn h for setting the Specificationof Letters Patent. Patented J l 21 191 b Application filed October 14,1913.

Serial No. 795,128.

fuse. The slide is moved by a member It which is journaled inan'extension i of the grip a, and when the latter is held in the handcan be displaced by the pressure of the thumb on the roughened knob Z.The connection between the slide 9 and the member 7a which effects thesetting is estab lished by a pin m which engages in a slot. in themember 7a. The member is is provided on one part. with teeth 12, withwhich a detent o is forced into engagement by a spring, so that adisplacement can only occur in a definite direction against the pressureof a spring 72. On pressing the knob Z the slide 9 is displaced throughthe space of one tooth. The distance apart of the teeth is such, thatthe slide 9 and the projection h on it are displaced by the amountcorresponding to the required correction. When the member I: reaches theend of its travel it will be returned to its normal position by thepressure of the spring 79 after the locking device 0 is released. Thelocking device 0 is released by pressing on its outwardly projectinghead, whereby the part engaging in the teeth of the member In is movedback, so that the spring 1) can return the setting member to its normalposition.

I claim as my invention 1. In a setting key having a. hand grip, acorrective element for engaging with the setting ring of a fuse, and alongitudinally movable member mounted adjacent to the hand grip andconnected to said corrective element for setting the latter.

2. In a setting key having a hand grip, a corrective element forengaging with the setting ring of a fuse, a springpr'essedlongitudinally movable member mounted adjac-entto the hand grip andconnected to said corrective element, and means for holding saidlongitudinally movable member in different positions, the spring of saidmember returning it to its normal position when released from saidholding means.

3. In a setting key having a hand grip, a corrective element forengaging with the setting ring of a fuse, a longitudinally movablemember mounted adjacent to the hand grip and connected to saidcorrective element, said member having teeth in one side, a springplaced under tension as said memher is moved to actuate said element,and a spring-pressed lock for engaging said teeth for holding saidmember in its dif- KARL VOLLER, a} ferent positions, said member beingrei 5 turned to its normal position by said spring VVitnes'ses:

when released from said lock. HELEN NUFER',

In testimony whereof, I have signed this ALBERT NUFER.

specification in the presence of two subscribing witnesses.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents;

Washington, I). C."

